- Bougainvillea – this lovely bonsai needs to be kept at temperatures above 5°C,
- Serissa – also needs a temperature above 5°C,
- Myrtle – slightly more hardy, but don’t leave outside in temperatures below 2°C,
- Pepper trees – this bonsai should not be subjected to a temperature below 5°C.
The temperatures at night are now getting colder, low enough to harm some bonsai if they are kept outdoors. The following species of tree are threatened at this time of year: